Question

на экскурсию отправилось 103 ребёнка, из них мальчиков на 7 больше, чем девочек. в гостинице девочек разместили в комнаты по 4 человека, а мальчиков по 5 человек. сколько комнат потребовалось, чтобы разместить детей?

Answer 1

103-7=96 (если мальчиков и девочек поровну)
96:2=48 девочек
48+7=55 мальчиков
48:4=12 комнат для девочек
55:5=11 комнат для мальчиков
12+11=23 комнаты всего

Answer 2

Problem Analysis

We are given that 103 children went on an excursion, with 7 more boys than girls. The girls were accommodated in rooms with 4 people each, while the boys were accommodated in rooms with 5 people each. We need to determine how many rooms were required to accommodate all the children.

Solution

Let's start by finding the number of boys and girls. We know that there are 7 more boys than girls, so we can set up the following equation:

number of boys = number of girls + 7

We can solve this equation to find the number of boys and girls.